Add 75/90 and 27/56
75/90 + 27/56 is 221/168.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 56 is 2520
Next, find the equivalent fraction of both fractional numbers with denominator 2520 - For the 1st fraction, since 90 × 28 = 2520,
75/90 = 75 × 28/90 × 28 = 2100/2520 - Likewise, for the 2nd fraction, since 56 × 45 = 2520,
27/56 = 27 × 45/56 × 45 = 1215/2520 - Add the two like fractions:
2100/2520 + 1215/2520 = 2100 + 1215/2520 = 3315/2520 - 3315/2520 simplified gives 221/168
- So, 75/90 + 27/56 = 221/168
In mixed form: 153/168
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/90+54/56 75/90+81/56